51202232042345 has 4 divisors (see below), whose sum is σ = 61442678450820. Its totient is φ = 40961785633872.

The previous prime is 51202232042281. The next prime is 51202232042363. The reversal of 51202232042345 is 54324023220215.

51202232042345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31933529752576 + 19268702289769 = 5650976^2 + 4389613^2 .

It is a cyclic number.

It is not a de Polignac number, because 51202232042345 - 2⁶ = 51202232042281 is a prime.

It is a super-2 number, since 2×51202232042345² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5120223204230 + ... + 5120223204239.

It is an arithmetic number, because the mean of its divisors is an integer number (15360669612705).

Almost surely, 2^{51202232042345} is an apocalyptic number.

It is an amenable number.

51202232042345 is a deficient number, since it is larger than the sum of its proper divisors (10240446408475).

51202232042345 is a wasteful number, since it uses less digits than its factorization.

51202232042345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10240446408474.

The product of its (nonzero) digits is 115200, while the sum is 35.

The spelling of 51202232042345 in words is "fifty-one trillion, two hundred two billion, two hundred thirty-two million, forty-two thousand, three hundred forty-five".